Druliner, A.D., B.J. Esmoil and J.M. Spears. 1999. Field screening of water quality, bottom sediment and biota associated with irrigation drainage in the North Platte Project Area, Nebraska and Wyoming, 1995. US Geological Survey Water Resources Investigations Report 98-4210.

Esmoil B.J., K.D. Schroeder, and T.E. Fannin.  1994.  A contaminant evaluation of the Big Blue River in southeastern Nebraska.  US Fish and Wildlife Service.  Contaminant Report No. R6/60II/94.

Fannin, T.E. 1991. Contaminant residues in Sand hill cranes killed upon striking power lines in central Nebraska, USA. US Fish and Wildlife Service, Grand Island, NE.

Fannin, T.E. and B.J. Esmoil. 1993. Metal and organic residues in addled eggs of least terns and piping plovers in the Platte Valley of Nebraska. Pages 150-158 in Higgins, K.F. and M.R. Brashier, eds. Proceedings, The Missouri River and its tributaries piping plover and least tern symposium/workshop. South Dakota State University, Brookings, SD.

Nelson, K.J. and B.J. Esmoil. 1999. Background contaminants evaluation of Fort Niobrara and Valentine National Wildlife Refuge. US Fish and Wildlife Service Contaminant Report, Grand Island, NE.

Nelson, K.J. and B.J. Esmoil. 2001. Trace element concentrations in plants and sediments at Crescent Lake National Wildlife Refuge. US Fish and Wildlife Service Contaminant Report, Grand Island, NE.

Schwarz, M.S., K.R. Echols, M.J. Wolcott and K.J. Nelson.  2004.  Environmental contaminants associated with swine concentrated animal feeding operation and implications for McMurtrey National Wildlife Refuge.  US Fish and Wildlife Service Contaminant Report, Grand Island, NE.